NESSUS is a renowned austrian alternative ISP that specializes in running its own 250km fiber backbone, radio-link network and operating two ISO-certified high-security data centers with a total area of over 2.300m² in the heart of Vienna. The company is still 100% owned by founder and CEO Florian Schicker. Our office is centrally located in Vienna and is easily accessible by public transport. We work in modern, bright and friendly offices in the air-conditioned attic.